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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 905 · 40 sums
TalentJR

The trick (Dwandwa Yoga): For abc: columns D(a) | D(ab) | D(abc) | D(bc) | D(c). D(a) = a², D(ab) = 2ab, D(abc) = 2ac + b², D(abcd) = 2ad + 2bc. Combine from the right with carries.

NameDateTime takenScore ___ / 40
  1. 1.274² =
  2. 2.190² =
  3. 3.574² =
  4. 4.571² =
  5. 5.519² =
  6. 6.369² =
  7. 7.4749² =
  8. 8.864² =
  9. 9.8735² =
  10. 10.193² =
  11. 11.562² =
  12. 12.436² =
  13. 13.660² =
  14. 14.607² =
  15. 15.449² =
  16. 16.177² =
  17. 17.499² =
  18. 18.431² =
  19. 19.719² =
  20. 20.980² =
  21. 21.6007² =
  22. 22.135² =
  23. 23.644² =
  24. 24.328² =
  25. 25.1775² =
  26. 26.809² =
  27. 27.8917² =
  28. 28.837² =
  29. 29.248² =
  30. 30.5099² =
  31. 31.1221² =
  32. 32.5479² =
  33. 33.482² =
  34. 34.983² =
  35. 35.261² =
  36. 36.6108² =
  37. 37.122² =
  38. 38.293² =
  39. 39.918² =
  40. 40.6144² =

Answer key

  1. 75076
  2. 36100
  3. 329476
  4. 326041
  5. 269361
  6. 136161
  7. 22553001
  8. 746496
  9. 76300225
  10. 37249
  11. 315844
  12. 190096
  13. 435600
  14. 368449
  15. 201601
  16. 31329
  17. 249001
  18. 185761
  19. 516961
  20. 960400
  21. 36084049
  22. 18225
  23. 414736
  24. 107584
  25. 3150625
  26. 654481
  27. 79512889
  28. 700569
  29. 61504
  30. 25999801
  31. 1490841
  32. 30019441
  33. 232324
  34. 966289
  35. 68121
  36. 37307664
  37. 14884
  38. 85849
  39. 842724
  40. 37748736

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